Step 3: Fix the column

Step 4: Put all together

Step 5: The pivot in action

Step 6: Close up of the bearing lazy susan

Some views of the lazy susan used

This fixture is very usefull for rotate 90 degrees the monitor in order to see o read documents in in a portrait fashion, there are drivers for video card that support this modes, in my case i use it to read pdfs.

I think this ring might be overkill. Do you really need something that's so complex? Why not simply use a door like hinge considering it really only needs to pivot 90 degrees? It would be stronger and less likely to break. I am not sure the best/cheapest way to fabricate the wall mount part with this design, though. Maybe someone else could come up with that design?

I'm thinking of doing the same thing. My question to you is does the bearing you have rotate freely, or does it have stop points, so that it takes a little effort to turn? I'd hate that a jiggle to the table could make it turn a little.

Very good, very simple. Although I'm slightly unsure about the lazy-susan bearing like other have said, it's likely to work fine. You could always stress-test it by mounting one of the bearings and hanging weights from it until it fails... I suspect the failure point is much higher than the weight of an average LCD screen.

ive spent the last 2 months designing and making a product that does exactly the same job as this for my college diploma, i concur with parman0 that the bearing you have used is not designed to hold a load in this plane and may fail without warning. in my design i overcame this by using an M10 screw through the two rotating plates and pre loading the thrust bearing in the rotational axis, however any method of fastening the two plates together whilst still allowing rotation should provide a safety net for your (expensive) screen should the bearing fail. i feel it would be only fair to post my version of this adaptor, and let you all give your criticism constructive or otherwise. (...windows users can normally rotate the screen image by using the keyboard shortcut.... Ctrl + Alt +(any direction arrow))

OK, i appreciate your comments, but after review this lazy susan gear i found that it is very robust and has resistance to traction sideways beacause it has a lock-stop around the circumference, as you can view on the picture attached (picture 6), i do not know what could it be the resistance of the sideways traction but i think that it will be greater than 30 Kg, and the monitor just weights 2kg.